feature: enable or disable math expressions separately from images

[haoming-li-ling]

Did you check the docs?

• [x] I have read all the snacks.nvim docs

Is your feature request related to a problem? Please describe.

Not a problem.

Describe the solution you'd like

For markdown and latex, I would like to display images inline, but not math expressions. However, there doesn't seem to be a way to just disable inline math expressions without also disabling inline images.

Describe alternatives you've considered

Cannot think of.

Additional context

No response